Window-counterbalancing device



June 8 1926.

1,587,641 B. J. GOLDSMlTH v WINDOW COUNTERBALANCING DEVICE Filed July 261924 Berfrdm J Gobsmi/i'v.

ATTORNEY;

Patented June 8, 1926.

UNITED STATES BERTRAM Ill GOLDSMITH, OF NEW YORK, N. Y., ASSIGNOR, BYMESNE ASSIGNMENTS,

TO PERFECT WINDOW REGULATOR CORPORATIOLL'OF LONG ISLAND CITY, NEW

YORK, A CORPORATION OF DELAWARE.

' wmnow-ooumnnnatancme nnvrcn.

Application filed July 26, 1924. Serial No. 728,310.

. prevent the window from rattling.

A further object of the invention is the production of a guideway of thetype spec1 fied which shall also have the function of urging the windowupwardly and acting as a counterbalance therefor.

' lVith the above and otherobjects in view the invention consists in thenovel device hereinafter described and then specified in the claims.

In the accompanying drawing showing a practical embodiment of theinvention:

Fig. 1 is a front elevation of-a window frame and window.

Fig. 2 is an enlarged section taken through I one of the side members ofthe frame.

Fig. 3 is a transverse section taken through one of the side members anda part of tie window.

Fig. 4. is a view similar to Fig. 3 butshowing a slight modification.Referring in detail to the several figures of the drawing:

1 indicates the side members of a window frame, while 2 and 3 indicatethe upper and lower members thereof. Said side members are each providedwith a channel 4. The window itself which may be either a framed orframeless ane is indicated at 5 and is provided at he lower edge thereofwith a U-strip 6 in which the window is seated and to which it issecured in any manner, said strip also having fastened thereto adownwardly depending slotted plate 7. The U- shaped strip 6 is providedwith an extension 8 at either end projecting within the channels 4.

of a pivoted. operating arm 12, the end of which is provided with aroller 13 engaging wlthin the slot of the plate '7.

In each of the channels 4, I locate a long scpl ared spiral spring 14the outer side of w 1ch is inwardly rounded or depressed as indicated at15. The upper ends of said springs are secured to the upper wall of saidchannels while the lower ends are fastened tothe extensions 8 of theU-strip 6. The sides of the window 5 slidably engage within the roundedor "depressed portion 15 of said springs. Said springs therefore, notonly provide supporting guideways forthe window but inasmuch as they arefastened thereto in the manner described they are constantly exerting anupward effort on the window and in consequence assist in the raisingthereof. F urtherinore they prevent the window from rattlingirrespective of its .position.

The window may be raised and lowered by rotation of the crank or handle10 where by the operating arm 12 is caused to swing on its pivot, the'roller 13then sliding the upwardly or downwardly depending on thedirection of rotation given the crank: or handle. is old in the art,however, and forms no part of the present invention.

In the modification illustrated in F ig. 4: the ends of the channels arebent inwardly toward the window as indicated at 16 this acting toprevent the springs from becoming dislodged from their proper position.

lVhat I claim as my inventionis:

1. Ina window, a guideway therefor in which the window is verticallyslidable, said guideway being adapted to exert an upward effort on saidwindow.

2. In a window, a guideway therefor C0111- prising a spiral spring onwhich the window is vertically slidable, said guideway acting to exertan upward eflort on said window.

3. In a window, a guideway therefor engaging the side of the window andin which the window is vertically slidable, said guideway acting tocounterbalance the weight of the window.

4. In a window, means for raising and lowering the same and a guidewayreceiving the side edge of the window and acting to assist in theraising operation thereof.

5. In a window, a U-shaped channel, a

slot of the plate 7 and forcing the window This operating mechanism perse spring in said U-shapedchanne1 engaging the window and on which saidwindow is slidable, said spring acting also to assist in ablew" 7. 'In awindow, a U-shaped channeland a spring therein fastened to said channeland to the window, said window being slidablo on said spring. I 1

8. In a window, a channel, a window having an extension extending withinsaid channel and a spring fastened to said channel and to said extensionand on which the win- .dow is slidahle vertically.

9; In a window, a U-shaped channel, a

spring therein fastened to the window and.

to said channel and on which said window is slidable, said channelhaving its free ends turned inwardly towards the window.

10. In a window, a guideway therefor in which the window is verticallyslidable, said guideway being adapted to exert an upward effort on saidwindow and means for raising and lowering said window.

11. In a window, a U-shaped channel in which the window is verticallyslidable, a U-shaped strip fastened to the lower edge of the window anda sprin in said channel fastened thereto and to said strip and exertingan upward eifort'on said window.

12. In a window, a window frame provided with U-shaped Channels thereinin which the window is slidable, a' U-shaped strip fastened to the loweredge of the window, a spring in said channel fastened to the upper endthereof and to-eaid strip and exerting an upward eifort on said window.

Signed at New York in the county of New York and State of New Yorl; thisth day of July A. D. 1924.

BERTRAM J. GOLDSMITH.

